I-Key Failure: Bad Press for Infiniti
#16
05-24-2007, 01:58 PM
Here's what I don't understand, the i-key is manufactured by Siemens VDO for Infiniti and is rated to operate at 315MHz. This is well below any one of the 4 bands of GSM, which are:
850 MHz (824.2 - 848.8 MHz Tx; 869.2 - 893.8 MHz Rx)
900 MHz (880-2 - 914.8 MHz Tx; 925.2 - 959.8 MHz Rx)
1800 MHz (1710.2 - 1784.8 MHz Tx; 1805.2 - 1879.8 MHz Rx)
1900 MHz (1850.2 - 1909.8 MHz Tx; 1930.2 - 1989.8 MHz Rx)
What kind of idiot engineer does it take to have interference from frequencies so far beyond the operating range of the product? It should be relatively simple for them to filter out frequencies outside of the key's operating band.
850 MHz (824.2 - 848.8 MHz Tx; 869.2 - 893.8 MHz Rx)
900 MHz (880-2 - 914.8 MHz Tx; 925.2 - 959.8 MHz Rx)
1800 MHz (1710.2 - 1784.8 MHz Tx; 1805.2 - 1879.8 MHz Rx)
1900 MHz (1850.2 - 1909.8 MHz Tx; 1930.2 - 1989.8 MHz Rx)
What kind of idiot engineer does it take to have interference from frequencies so far beyond the operating range of the product? It should be relatively simple for them to filter out frequencies outside of the key's operating band.
#17
05-24-2007, 02:03 PM
I'm not sure about phones like this but with cordless phones, wireless internet, etc. anything in the same "multiplier" can affect each other. I'm not sure if that is a good term but basically a 2.4 ghz phone can be affected by something that is 4.8 ghz but not something 5.6 ghz. Make sense? It could well be something like that.
#18
05-24-2007, 02:03 PM
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Originally Posted by ChristianN
Here's what I don't understand, the i-key is manufactured by Siemens VDO for Infiniti and is rated to operate at 315MHz. This is well below any one of the 4 bands of GSM, which are:
850 MHz (824.2 - 848.8 MHz Tx; 869.2 - 893.8 MHz Rx)
900 MHz (880-2 - 914.8 MHz Tx; 925.2 - 959.8 MHz Rx)
1800 MHz (1710.2 - 1784.8 MHz Tx; 1805.2 - 1879.8 MHz Rx)
1900 MHz (1850.2 - 1909.8 MHz Tx; 1930.2 - 1989.8 MHz Rx)
What kind of idiot engineer does it take to have interference from frequencies so far beyond the operating range of the product? It should be relatively simple for them to filter out frequencies outside of the key's operating band.
850 MHz (824.2 - 848.8 MHz Tx; 869.2 - 893.8 MHz Rx)
900 MHz (880-2 - 914.8 MHz Tx; 925.2 - 959.8 MHz Rx)
1800 MHz (1710.2 - 1784.8 MHz Tx; 1805.2 - 1879.8 MHz Rx)
1900 MHz (1850.2 - 1909.8 MHz Tx; 1930.2 - 1989.8 MHz Rx)
What kind of idiot engineer does it take to have interference from frequencies so far beyond the operating range of the product? It should be relatively simple for them to filter out frequencies outside of the key's operating band.
Last edited by audiophool; 05-24-2007 at 02:06 PM.
#20
05-24-2007, 02:24 PM
#22
05-24-2007, 02:51 PM
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#23
05-24-2007, 03:05 PM
I'd bet 2cents that its GSM as well. Its notorious for causing audible interference with radios/landlines etc.
Anyone willing to experiment? :P
Anyone willing to experiment? :P
Originally Posted by max2k1
My gut feeling says this is probably more of a GSM issue than CDMA.
But again, its just a guess based on what I know about these technologies ....
But again, its just a guess based on what I know about these technologies ....
#24
05-24-2007, 03:16 PM
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Originally Posted by spacecowboy
Any cell phone OR any PDA can delete the fob. Also, benz, bimmer, audi, lexus all use the same inteligent key, so they have they same problem
AFAIK this issue is unique to Nissan/Infiniti.
#25
05-24-2007, 03:45 PM
Originally Posted by tagheuer
This is absolutely not the case. MB and BMW have had their keyless entry systems in place for a few years now and have not had any issues of cellphone signals wiping the keycodes.
AFAIK this issue is unique to Nissan/Infiniti.
AFAIK this issue is unique to Nissan/Infiniti.
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